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zalisa [80]
4 years ago
14

Evaluate 5x/y^2 for each of the following combinations , 1. X=-2,y=-4.

Mathematics
1 answer:
tankabanditka [31]4 years ago
6 0

\frac{5x}{y^2}\\\\\frac{5(-2)}{-4^2} = \frac{-10}{16}=-\frac{5}{8}\\\\\frac{5(0)}{-4^2}=\frac{0}{16}=0\\\\\frac{5(-4)}{0^2}=\frac{-20}{0}=∅

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

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5. Which of the following illustrates the Distributive
babunello [35]

Answer: Hi!

Option I is correct. 3(2x + 4) = 6x + 12

When you use the <em>distributive property</em>, you multiply the term outside of the parentheses (in this case, 3) by the terms inside of the parentheses (in this case, 2x and 4.)

Hope this helps!

8 0
4 years ago
I need help fast please hurry
Alchen [17]

Answer:

3 is the right one

Step-by-step explanation:

6 0
3 years ago
Enter the values for the highlighted variables to complete the steps to find the sum: (see picture)
dangina [55]

Answer:

a = -1

b = -9

c = 9

d = 3

e = 3

f = 2

g = 3/2

Step-by-step explanation:

* Lets explain how to solve the problem

∵ \frac{3x}{2x-6}+\frac{9}{6-2x} are rational fractions

- To add or subtract the rational fractions they must have same

  denominator

∵ 6 - 2x must be written 2x - 6, take (-1) as a common factor from 6 - 2x

∴ - 1(-6 + 2x) = - 1(2x - 6)

∴ \frac{3x}{2x - 6}+\frac{9}{6-2x}=\frac{3x}{2x-6}+\frac{9}{-1(2x-6)}

∴ a = -1

∵ 9 ÷ -1 = -9

∴ =  \frac{3x}{2x-6}+\frac{-9}{2x-6}

∴ b = -9

∵ The denominators of the two fractions are 2x - 6

∴ We can add them by adding their numerator

∵ 3x + -9 = 3x - 9

∴ = \frac{3x-9}{2x-6}

∴ c = 9

∵ 3x - 9 has a common factor 3

∴ 3x - 9 = 3(x - 3)

∵ 2x - 6 has common factor 2

∴ 2x - 6 = 2(x - 3)

∴ = \frac{3(x-3)}{2(x-3)}

∴ d = 3 , e = 3 , f = 2

- The fraction has same factor (x - 3) up and down then we can cancel

  them together

∴ = \frac{3}{2}

∴ g = 3/2

5 0
3 years ago
Which transformation will be equivalent to rotating a figure 270° counterclockwise? A) reflecting over the x-axis and the y-axis
bagirrra123 [75]
Reflection over the y-axis:
  (x, y) ⇒ (-x, y)

Reflection of that over the line y = x:
  (-x, y) ⇒ (y, -x)

Rotation counterclockwise by 270°:
  (x, y) ⇒ (y, -x) . . . . . . equivalent to reflection over y, then over y=x.

The appropriate choice is ...
  C) Reflecting over the y-axis and then reflecting over the line y = x.
5 0
4 years ago
Read 2 more answers
A parallelogram has one angle that measures 120 degrees. What are the measures of other three angles in the parallelogram?
leonid [27]

Answer:

60 degrees

Step-by-step explanation:

First we need to know how many degrees are in a parallelogram. We can use the formula 180(n-2) (n is the number of sides)

This works out to 180(4-2)=360 degrees.

Now we can set up the following equation as:

2(120)+2x=360 Subtract 240 from both sides to get:

2x=120 Divide by 2 to get:

x=60 degrees

Therefore we know 2 angles are each 120 degrees and the other 2 are 60 degrees.

Makes sense?

5 0
4 years ago
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